3 papers
quant-ph2026
Amplituhedra for generic quantum processes via the TQNN representation of UQC
Chris Fields, James F. Glazebrook, Antonino Marcianò +1
We study the relationship between computation and scattering both operationally (hence phenomenologically) and formally. We develop a representation of universal quantum computatio…
quant-ph2025
Operational protocols cannot certify classicality
Chris Fields, James F. Glazebrook, Antonino Marcianò +1
The existence and practical utility of operational protocols that certify entanglement raises the question of whether operational protocols exist that certify the absence of entang…
quant-ph2025
Whether a quantum computation employs nonlocal resources is operationally undecidable
Chris Fields, James F. Glazebrook, Antonino Marciano +1
Computational complexity characterizes the usage of spatial and temporal resources by computational processes. In the classical theory of computation, e.g. in the Turing Machine mo…